ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿Ä³Í¬Ñ§ÔÚ¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬Óôòµã¼ÆʱÆ÷¼Ç¼Á˱»Ð¡³µÍ϶¯µÄÖ½´øµÄÔ˶¯Çé¿ö£¬ÔÚÖ½´øÉÏÈ·¶¨³öA¡¢B¡¢C¡¢D¡¢E¡¢F¡¢G¹²7¸ö¼ÆÊýµã£¬ÈçͼËùʾ£¬ÆäÏàÁÚµã¼äµÄ¾àÀë·Ö±ðΪAB=3.62cm£¬BC=4.38cm£¬CD=5.20cm£¬DE=5.99cm£¬EF=6.80cm£¬FG=7.62cm£¬Ã¿Á½¸öÏàÁڵļÆÊýµãµÄʱ¼ä¼ä¸ôΪ0.10s¡£

£¨1£©¼ÆËã³ö´òÏÂBµãС³µµÄ˲ʱËÙ¶È________

£¨2£©ÓÃÖð²î·¨Çó³öС³µÔ˶¯µÄ¼ÓËÙ¶È=___£¨¼ÆËã½á¹û¾ù±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

¡¾´ð°¸¡¿0.40 0.80

¡¾½âÎö¡¿

£¨1£©[1]¸ù¾ÝÖеãʱ¿ÌµÄËٶȵÈÓÚƽ¾ùËٶȿÉÖªBµãµÄËÙ¶ÈΪ£º

.

£¨2£©[2]ÓÉÖð²î·¨¿ÉµÃ£º

Ïà¼ÓµÃ£º

£¬

½âµÃ£º

´ð°¸£º(1). 0.40 (2). 0.80

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø